United States securities and exchange commission logo




                                                                                
                              November 29, 2022

       Pablo Brizzio
       Chief Financial Officer
       Ternium S.A.
       26 Boulevard Royal     4th floor
       L-2449 Luxembourg

                                                        Re: Ternium S.A.
                                                            Form 20-F for the 
Year Ended December 31, 2021
                                                            Form 6-K furnished 
April 27, 2022
                                                            Response Dated 
November 2, 2022
                                                            File No. 1-32734

       Dear Pablo Brizzio:

              We have reviewed your November 2, 2022 response to our comment 
letter and have the
       following comments. In some of our comments, we may ask you to provide 
us with information
       so we may better understand your disclosure.

              Please respond to these comments within ten business days by 
providing the requested
       information or advise us as soon as possible when you will respond. If 
you do not believe our
       comments apply to your facts and circumstances, please tell us why in 
your response.

            After reviewing your response to these comments, we may have 
additional
       comments. Unless we note otherwise, our references to prior comments are 
to comments in our
       November 2, 2022 letter.

       Response letter dated November 2, 2022

       Note 4. Segment Information, page F-40

   1.                                                   We note from your 
response to comment 3 that your CODM reviews the Commercial and
                                                        Industrial Performance 
Report on a monthly basis, which includes financial information or
                                                        Mexico, the Southern 
Region, Brazil and Other Markets business units. We continue to
                                                        have concerns about 
your identification of your operating segments. Tell us in detail why
                                                        these business units do 
not meet the operating segment characteristics described in IFRS 8
                                                        paragraph 5. 
Specifically address in your response how you considered whether this
                                                        business unit financial 
information represents operating results that are regularly reviewed
                                                        by your CODM to make 
decisions about resources to be allocated to each business unit
                                                        and assess its 
performance.
 Pablo Brizzio
FirstName  LastNamePablo Brizzio
Ternium S.A.
Comapany 29,
November   NameTernium
              2022       S.A.
November
Page 2    29, 2022 Page 2
FirstName LastName
2.       We note your response to our comment number 1. You state    upon 
further reflection and
         discussions with the Staff, the Company believes that it is more 
appropriate to state that
         the Company only has two operating segments   Mining and Steel, and 
that its regional
         operations do not qualify as operating segments under IFRS 8.    
Expand your response to
         walk us through the material factors you considered in this apparent 
change to your
         identified operating segments. As part of your response, tell us why 
the previous
         disclosure differs from your current view. We further note the staff 
did not provide
         guidance on what would constitute the appropriate operating segments, 
based on your
         facts and circumstances, during our discussions.
3.       We note from your proposed revisions to your segment footnote on page 
2 of your
         response, that the CEO holds monthly meetings in which operating and 
financial
         performance information is reviewed, including financial information 
that differs from
         IFRS (with certain differences listed). However, the table below this 
narrative in your
         response appears to be consistent with the IFRS financial statements 
for the totals
         presented. Resolve this inconsistency for us.
4.       We note the organization chart provided in your response to our 
comment number 2. As
         previously requested, identify and describe the role of each of your 
segment managers.
         Refer to IFRS 8 paragraph 9. Also, explain to us the role of the 
Global Planning Direction
         and how that position may interact with the Area Managers
5.       In your response to comment number 2 you state    The CODM evaluates 
the operations
         and performance of the Steel business as a whole, using operating 
income as the key
         performance measure. In addition, decision-making is carried out with 
respect to
         Ternium   s Steel business in all markets in the aggregate.    Provide 
us more detail as to
         how the CODM allocates resources to the business and assesses its 
performance,
         including the nature of decisions made by the CODM as they relate to 
any of the
         geographic regions. Also, as previously requested, identify for us the 
key operating
         decisions necessary to run the business and identify for us who makes 
those decisions.
6.       In the same response, you describe the budget, which is prepared by 
the Global Planning
         Direction and presented to the CEO. The CEO meets with those 
responsible for each
         department/direction and makes    observations, determines any 
required amendments   
         prior to approval. To help us better understand your response, 
identify the individuals
         involved at each level of the budget process from the beginning to 
final approval, and the
         nature of their involvement. As part of your response, explain the 
role of the Area
         Managers and Global Planning Direction in budgeting, and how budgets 
for sales and
         costs of each region are developed.
7.       We note your response to comment #2 relating to compensation. Clearly 
indicate if any
         of the Area Managers or segment manager   s compensation is based on 
financial metrics
         calculated below a consolidated level, and if so, what those metrics 
are.
8.       In your response to comment 3, you identified the Steel profit center 
regional detailed
         table as one of the two main schedules of the Commercial and 
Industrial Performance
 Pablo Brizzio
Ternium S.A.
November 29, 2022
Page 3
         Report. Explain to us the purpose of this schedule and how each of the 
Business Units   
         commercial results and Production Units    results are used by the 
CODM, including the
         use of any budget to actual information. Also expand further on your 
statement that this
         table does not have a unit of measurement for purposes of allocating 
resources and
         evaluating performance.
9.       We further note you disclose that the    CODM receives from time to 
time a variety of
         financial and non-financial reports and reviews certain information by 
geographic region
         to assess the industrial and commercial performance in the different 
areas.    Explain to us
         the nature of the information included in these reports, if different 
from that included in
         the response, the frequency with which they are received, and explain 
to us how these
         reports are used to assess performance but are not used to determine 
how to allocate
         resources.
10.      We note your response that the Steel profit center regional detailed 
table includes only
         sales to external customers for the geographic regions in the Steel 
segment. Explain why
         this table does not include intercompany transaction. Additionally, 
tell us if any
         intercompany sales information is provided to the CODM and if so tell 
us how he uses
         that information.
      You may contact Charles Eastman at (202) 551-3794 or Claire Erlanger at 
(202) 551-
3301 with any questions.



FirstName LastNamePablo Brizzio                               Sincerely,
Comapany NameTernium S.A.
                                                              Division of 
Corporation Finance
November 29, 2022 Page 3                                      Office of 
Manufacturing
FirstName LastName